Challenge 1: Your First Script — Possible Solution
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#!/usr/bin/env perl
use strict;
use warnings;
use feature 'say';

say "Hello, Perl!";

Output:
Hello, Perl!

WHY THIS WORKS AS AN ANSWER
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#!/usr/bin/env perl reuses the chapter's own preferred shebang form
exactly — env locates whichever perl is first on PATH, rather than
assuming one hardcoded install location.

use strict; and use warnings; reuse the chapter's own "non-negotiable
culture" pair, placed at the very top of the script before any other
code, matching every example shown in the chapter.

use feature 'say'; is the required enabling line the chapter names
for say to be available at all — without it, say isn't recognized as
a built-in. say "Hello, Perl!"; then reuses the chapter's own
explanation directly: it behaves like print but adds the trailing
newline automatically, which is why no explicit \n appears here,
unlike a plain print call would need.